Mobile terminal and operating method thereof

ABSTRACT

A mobile terminal including a wireless communication processor configured to receive an omnidirectional image from a photographing device; a display; and a controller configured to display a first image on a main screen of the display corresponding to a first partial image of the omnidirectional image, and display a second image corresponding to a second partial image of the omnidirectional image on a sub-screen, the second image having an object with an attribute similar to an object included in the first image.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. §119 and §365 to KoreanPatent Application No. 10-2016-0102571, filed on Aug. 11, 2016 in theKorean Intellectual Property Office, the disclosure of which isincorporated herein by reference.

BACKGROUND

Terminals may be generally classified as mobile/portable terminals orstationary terminals. Mobile terminals may also be classified ashandheld terminals or vehicle mounted terminals.

Mobile terminals have become increasingly more functional. Examples ofsuch functions include data and voice communications, capturing imagesand video via a camera, recording audio, playing music files via aspeaker system, and displaying images and video on a display. Somemobile terminals include additional functionality which supports gameplaying, while other terminals are configured as multimedia players.More recently, mobile terminals have been configured to receivebroadcast and multicast signals which permit viewing of content such asvideos and television programs.

As such functions become more diversified, the mobile terminal cansupport more complicated functions such as capturing images or video,reproducing music or video files, playing games, receiving broadcastsignals, and the like. By comprehensively and collectively implementingsuch functions, the mobile terminal may be embodied in the form of amultimedia player or device.

Recently, the mobile terminal can be used to be interlocked with aphotographing device for photographing omnidirectional images. A generalcamera photographs a two-dimensional image, but a 360-degree camera canphotograph a three-dimensional space as a spherical omnidirectionalimage. The photographed omnidirectional image is transmitted to themobile terminal, to be displayed on a display.

However, the display of the mobile terminal displays only a partialimage of the omnidirectional image. Therefore, a user has to perform amanipulation for moving to a desired point through several touch inputsso as to view another partial image except the displayed partial image.

SUMMARY

Accordingly, an object of the present disclosure is to address theabove-noted and other problems.

Another object of the present disclosure is to provide a mobile terminaland an operating method thereof, which can display, on a sub-screen, animage included in an omnidirectional image having an attribute identicalor similar to an image displayed on a main screen.

Another object of the present disclosure is to provide a mobile terminaland an operating method thereof, which can detect an intention of auser, based on an image displayed on a main screen, and rapidly providean image suitable for the detected intention in an omnidirectionalimage.

In one embodiment, there is provided a mobile terminal including: ashort-range communication module configured to receive anomnidirectional image from a photographing device; a display unitconfigured to display a first image included in the receivedomnidirectional image on a main screen; and a controller configured tocontrol the short-range communication module and the display unit,wherein the controller acquires one or more of object information of thefirst image displayed on the main screen and an event related to theomnidirectional image, and displays a second image included in theomnidirectional image on a sub-screen, based on one or more of theacquired object information of the first image and the acquired event.

In another embodiment, there is provided a method for operating a mobileterminal, the method including: receiving an omnidirectional image froma photographing device; displaying a first image included in thereceived omnidirectional image on a main screen; acquiring one or moreof object information of the first image displayed on the main screenand an event related to the omnidirectional image; and displaying asecond image included in the omnidirectional image on a sub-screen,based on one or more of the acquired object information of the firstimage and the acquired event.

According to the present disclosure, a user can quickly confirm an imageto be searched by the user in an omnidirectional image, and view aphotographed omnidirectional image suitable for an intention of theuser.

Further scope of applicability of the present disclosure will becomeapparent from the detailed description given hereinafter. However, itshould be understood that the detailed description and specificexamples, while indicating preferred embodiments of the disclosure, aregiven by illustration only, since various changes and modificationswithin the spirit and scope of the disclosure will become apparent tothose skilled in the art from this detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from thedetailed description given hereinbelow and the accompanying drawings,which are given by illustration only, and thus are not limitative of thepresent invention, and wherein:

FIG. 1 A is a block diagram of a mobile terminal in accordance with thepresent disclosure.

FIGS. 1B and 1C are conceptual views of one example of the mobileterminal, viewed from different directions.

FIG. 2 is a conceptual view of a deformable mobile terminal according toan alternative embodiment.

FIG. 3 is a conceptual view of a wearable mobile terminal according toanother alternative embodiment.

FIG. 4 is a conceptual view of a wearable mobile terminal according toanother alternative embodiment.

FIG. 5 is view illustrating a configuration of a mobile terminal and aphotographing device according to an embodiment.

FIG. 6 is a flowchart illustrating an operating method of the mobileterminal according to an embodiment.

FIG. 7A is a view illustrating that an omnidirectional background aroundthe photographing device is to be photographed, and FIG. 7B viewillustrating an example in which a second image is displayed on asub-screen, based on any one of object information of a first imagedisplayed on a main screen and an event related to an omnidirectionalimage according to an embodiment.

FIGS. 8A and 8B are views illustrating an example in which a secondimage is displayed on the sub-screen, based on object information of afirst image displayed on the main screen according to an embodiment.

FIGS. 9A to 9C are views illustrating an example in which a second imageis displayed on the sub-screen, based on object information of a firstimage displayed on the main screen according to another embodiment.

FIGS. 10A to 10C are views illustrating an example in which, as a firstimage displayed on the main screen is changed to a third image, a secondimage displayed on the sub-screen is changed to a fourth image relatedto object information of the third image.

FIGS. 11A and 11B are views illustrating an example in which a secondimage is changed to another image related to object information of afirst image in response to a change request of the second imagedisplayed on the sub-screen according to an embodiment.

FIGS. 12A and 12B are views illustrating an example in which, based onobject information of a first image displayed on the main screen, asecond image related to the object information of the first image isdisplayed on the sub-screen according to another embodiment.

FIGS. 13A and 13B are views illustrating an example in which, based onan event detected from an omnidirectional background corresponding to anomnidirectional image, an image corresponding to the detected event isprovided on the sub-screen according to an embodiment.

FIGS. 14A and 14B are views illustrating a process of changing sizes ofthe main screen and the sub-screen or changing the main screen and thesub-screen according to an embodiment.

FIGS. 15A and 15B are views illustrating an example in which, after animage displayed on the main screen and an image displayed on thesub-screen are photographed and stored, a stored omnidirectional imageis provided in various forms according to an embodiment.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Description will now be given in detail according to exemplaryembodiments disclosed herein, with reference to the accompanyingdrawings. For the sake of brief description with reference to thedrawings, the same or equivalent components may be provided with thesame reference numbers, and description thereof will not be repeated. Ingeneral, a suffix such as “module” and “unit” may be used to refer toelements or components. Use of such a suffix herein is merely intendedto facilitate description of the specification, and the suffix itself isnot intended to give any special meaning or function. The accompanyingdrawings are used to help easily understand various technical featuresand it should be understood that the embodiments presented herein arenot limited by the accompanying drawings. As such, the presentdisclosure should be construed to extend to any alterations, equivalentsand substitutes in addition to those which are particularly set out inthe accompanying drawings.

Although the terms first, second, etc. may be used herein to describevarious elements, these elements should not be limited by these terms.These terms are generally only used to distinguish one element fromanother. When an element is referred to as being “connected with”another element, the element can be connected with the other element orintervening elements may also be present. In contrast, when an elementis referred to as being “directly connected with” another element, thereare no intervening elements present.

A singular representation may include a plural representation unless itrepresents a definitely different meaning from the context. Terms suchas “include” or “has” are used herein and should be understood that theyare intended to indicate an existence of several components, functionsor steps, disclosed in the specification, and it is also understood thatgreater or fewer components, functions, or steps may likewise beutilized.

Mobile terminals presented herein may be implemented using a variety ofdifferent types of terminals. Examples of such terminals includecellular phones, smart phones, user equipment, laptop computers, digitalbroadcast terminals, personal digital assistants (PDAs), portablemultimedia players (PMPs), navigators, portable computers (PCs), slatePCs, tablet PCs, ultra books, wearable devices (for example, smartwatches, smart glasses, head mounted displays (HMDs)), and the like.

By way of non-limiting example only, further description will be madewith reference to particular types of mobile terminals. However, suchteachings apply equally to other types of terminals, such as those typesnoted above. In addition, these teachings may also be applied tostationary terminals such as digital TV, desktop computers, and thelike.

Reference is now made to FIGS. 1A-1C, where FIG. 1A is a block diagramof a mobile terminal in accordance with the present disclosure, andFIGS. 1B and 1C are conceptual views of one example of the mobileterminal, viewed from different directions.

The mobile terminal 100 is shown having components such as a wirelesscommunication unit 110, an input unit 120, a sensing unit 140, an outputunit 150, an interface unit 160, a memory 170, a controller 180, and apower supply unit 190. Implementing all of the illustrated components isnot a requirement, and that greater or fewer components mayalternatively be implemented.

Referring now to FIG. 1A, the mobile terminal 100 is shown havingwireless communication unit 110 configured with several commonlyimplemented components. For instance, the wireless communication unit110 typically includes one or more components which permit wirelesscommunication between the mobile terminal 100 and a wirelesscommunication system or network within which the mobile terminal islocated.

The wireless communication unit 110 typically includes one or moremodules which permit communications such as wireless communicationsbetween the mobile terminal 100 and a wireless communication system,communications between the mobile terminal 100 and another mobileterminal, communications between the mobile terminal 100 and an externalserver. Further, the wireless communication unit 110 typically includesone or more modules which connect the mobile terminal 100 to one or morenetworks. To facilitate such communications, the wireless communicationunit 110 includes one or more of a broadcast receiving module 111, amobile communication module 112, a wireless Internet module 113, ashort-range communication module 114, and a location information module115.

The input unit 120 includes a camera 121 for obtaining images or video,a microphone 122, which is one type of audio input device for inputtingan audio signal, and a user input unit 123 (for example, a touch key, apush key, a mechanical key, a soft key, and the like) for allowing auser to input information. Data (for example, audio, video, image, andthe like) is obtained by the input unit 120 and may be analyzed andprocessed by controller 180 according to device parameters, usercommands, and combinations thereof.

The sensing unit 140 is typically implemented using one or more sensorsconfigured to sense internal information of the mobile terminal, thesurrounding environment of the mobile terminal, user information, andthe like. For example, in FIG. 1A, the sensing unit 140 is shown havinga proximity sensor 141 and an illumination sensor 142.

If desired, the sensing unit 140 may alternatively or additionallyinclude other types of sensors or devices, such as a touch sensor, anacceleration sensor, a magnetic sensor, a G-sensor, a gyroscope sensor,a motion sensor, an RGB sensor, an infrared (IR) sensor, a finger scansensor, a ultrasonic sensor, an optical sensor (for example, camera121), a microphone 122, a battery gauge, an environment sensor (forexample, a barometer, a hygrometer, a thermometer, a radiation detectionsensor, a thermal sensor, and a gas sensor, among others), and achemical sensor (for example, an electronic nose, a health care sensor,a biometric sensor, and the like), to name a few. The mobile terminal100 can be configured to utilize information obtained from sensing unit140, and in particular, information obtained from one or more sensors ofthe sensing unit 140, and combinations thereof.

The output unit 150 is typically configured to output various types ofinformation, such as audio, video, tactile output, and the like. Theoutput unit 150 is shown having a display unit 151, an audio outputmodule 152, a haptic module 153, and an optical output module 154.

The display unit 151 may have an inter-layered structure or anintegrated structure with a touch sensor in order to facilitate a touchscreen. The touch screen may provide an output interface between themobile terminal 100 and a user, as well as function as the user inputunit 123 which provides an input interface between the mobile terminal100 and the user.

The interface unit 160 serves as an interface with various types ofexternal devices that can be coupled to the mobile terminal 100. Theinterface unit 160, for example, may include any of wired or wirelessports, external power supply ports, wired or wireless data ports, memorycard ports, ports for connecting a device having an identificationmodule, audio input/output (I/O) ports, video I/O ports, earphone ports,and the like. In some cases, the mobile terminal 100 can performassorted control functions associated with a connected external device,in response to the external device being connected to the interface unit160.

The memory 170 is typically implemented to store data to support variousfunctions or features of the mobile terminal 100. For instance, thememory 170 may be configured to store application programs executed inthe mobile terminal 100, data or instructions for operations of themobile terminal 100, and the like. Some of these application programsmay be downloaded from an external server via wireless communication.Other application programs may be installed within the mobile terminal100 at time of manufacturing or shipping, which is typically the casefor basic functions of the mobile terminal 100 (for example, receiving acall, placing a call, receiving a message, sending a message, and thelike). It is common for application programs to be stored in the memory170, installed in the mobile terminal 100, and executed by thecontroller 180 to perform an operation (or function) for the mobileterminal 100.

The controller 180 typically functions to control overall operation ofthe mobile terminal 100, in addition to the operations associated withthe application programs. The controller 180 can provide or processinformation or functions appropriate for a user by processing signals,data, information and the like, which are input or output by the variouscomponents depicted in FIG. 1A, or activating application programsstored in the memory 170. As one example, the controller 180 controlssome or all of the components illustrated in FIGS. 1A-1C according tothe execution of an application program that have been stored in thememory 170.

The power supply unit 190 can be configured to receive external power orprovide internal power in order to supply appropriate power required foroperating elements and components included in the mobile terminal 100.The power supply unit 190 may include a battery, and the battery may beconfigured to be embedded in the terminal body, or configured to bedetachable from the terminal body.

Referring still to FIG. 1A, various components depicted in this figurewill now be described in more detail. Regarding the wirelesscommunication unit 110, the broadcast receiving module 111 is typicallyconfigured to receive a broadcast signal and/or broadcast associatedinformation from an external broadcast managing entity via a broadcastchannel. The broadcast channel may include a satellite channel, aterrestrial channel, or both. In some embodiments, two or more broadcastreceiving modules 111 may be utilized to facilitate simultaneouslyreceiving of two or more broadcast channels, or to support switchingamong broadcast channels.

The broadcast managing entity may be a server which generates andtransmits a broadcast signal and/or broadcast associated information, ora server which receives a pre-generated broadcast signal and/orbroadcast associated information, and sends such items to the mobileterminal.

The broadcast signal may be implemented using any of a TV broadcastsignal, a radio broadcast signal, a data broadcast signal, andcombinations thereof, among others. The broadcast signal in some casesmay further include a data broadcast signal combined with a TV or radiobroadcast signal.

The broadcast signal may be encoded according to any of a variety oftechnical standards or broadcasting methods (for example, InternationalOrganization for Standardization (ISO), International ElectrotechnicalCommission (IEC), Digital Video Broadcast (DVB), Advanced TelevisionSystems Committee (ATSC), and the like) for transmission and receptionof digital broadcast signals. The broadcast receiving module 111 canreceive the digital broadcast signals using a method appropriate for thetransmission method utilized.

Examples of broadcast associated information may include informationassociated with a broadcast channel, a broadcast program, a broadcastevent, a broadcast service provider, or the like. The broadcastassociated information may also be provided via a mobile communicationnetwork, and in this instance, received by the mobile communicationmodule 112.

The broadcast associated information may be implemented in variousformats. For instance, broadcast associated information may include anElectronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB),an Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld(DVB-H), and the like. Broadcast signals and/or broadcast associatedinformation received via the broadcast receiving module 111 may bestored in a suitable device, such as a memory 170.

The mobile communication module 112 can transmit and/or receive wirelesssignals to and from one or more network entities. Typical examples of anetwork entity include a base station, an external mobile terminal, aserver, and the like. Such network entities form part of a mobilecommunication network, which is constructed according to technicalstandards or communication methods for mobile communications (forexample, Global System for Mobile Communication (GSM), Code DivisionMulti Access (CDMA), CDMA2000 (Code Division Multi Access 2000), EV-DO(Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WidebandCDMA (WCDMA), High Speed Downlink Packet access (HSDPA), HSUPA (HighSpeed Uplink Packet Access), Long Term Evolution (LTE), LTE-A (Long TermEvolution-Advanced), and the like). Examples of wireless signalstransmitted and/or received via the mobile communication module 112include audio call signals, video (telephony) call signals, or variousformats of data to support communication of text and multimediamessages.

The wireless Internet module 113 is configured to facilitate wirelessInternet access. This module may be internally or externally coupled tothe mobile terminal 100. The wireless Internet module 113 may transmitand/or receive wireless signals via communication networks according towireless Internet technologies.

Examples of such wireless Internet access include Wireless LAN (WLAN),Wireless Fidelity (Wi-Fi), Wi-Fi Direct, Digital Living Network Alliance(DLNA), Wireless Broadband (WiBro), Worldwide Interoperability forMicrowave Access (WiMAX), High Speed Downlink Packet Access (HSDPA),HSUPA (High Speed Uplink Packet Access), Long Term Evolution (LTE),LTE-A (Long Term Evolution-Advanced), and the like. The wirelessInternet module 113 may transmit/receive data according to one or moreof such wireless Internet technologies, and other Internet technologiesas well.

In some embodiments, when the wireless Internet access is implementedaccording to, for example, WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE,LTE-A and the like, as part of a mobile communication network, thewireless Internet module 113 performs such wireless Internet access. Assuch, the Internet module 113 may cooperate with, or function as, themobile communication module 112.

The short-range communication module 114 is configured to facilitateshort-range communications. Suitable technologies for implementing suchshort-range communications include BLUETOOTH™, Radio FrequencyIDentification (RFID), Infrared Data Association (IrDA), Ultra-WideBand(UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity(Wi-Fi), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus), andthe like. The short-range communication module 114 in general supportswireless communications between the mobile terminal 100 and a wirelesscommunication system, communications between the mobile terminal 100 andanother mobile terminal 100, or communications between the mobileterminal and a network where another mobile terminal 100 (or an externalserver) is located, via wireless area networks. One example of thewireless area networks is a wireless personal area networks.

In some embodiments, another mobile terminal (which may be configuredsimilarly to mobile terminal 100) may be a wearable device, for example,a smart watch, a smart glass or a head mounted display (HMD), which canexchange data with the mobile terminal 100 (or otherwise cooperate withthe mobile terminal 100). The short-range communication module 114 maysense or recognize the wearable device, and permit communication betweenthe wearable device and the mobile terminal 100. In addition, when thesensed wearable device is a device which is authenticated to communicatewith the mobile terminal 100, the controller 180, for example, may causetransmission of data processed in the mobile terminal 100 to thewearable device via the short-range communication module 114. Hence, auser of the wearable device may use the data processed in the mobileterminal 100 on the wearable device. For example, when a call isreceived in the mobile terminal 100, the user can answer the call usingthe wearable device. Also, when a message is received in the mobileterminal 100, the user can check the received message using the wearabledevice.

The location information module 115 is generally configured to detect,calculate, derive or otherwise identify a position of the mobileterminal. As an example, the location information module 115 includes aGlobal Position System (GPS) module, a Wi-Fi module, or both. Ifdesired, the location information module 115 may alternatively oradditionally function with any of the other modules of the wirelesscommunication unit 110 to obtain data related to the position of themobile terminal.

As one example, when the mobile terminal uses a GPS module, a positionof the mobile terminal may be acquired using a signal sent from a GPSsatellite. As another example, when the mobile terminal uses the Wi-Fimodule, a position of the mobile terminal can be acquired based oninformation related to a wireless access point (AP) which transmits orreceives a wireless signal to or from the Wi-Fi module.

The input unit 120 may be configured to permit various types of input tothe mobile terminal 120. Examples of such input include audio, image,video, data, and user input. Image and video input is often obtainedusing one or more cameras 121. Such cameras 121 may process image framesof still pictures or video obtained by image sensors in a video or imagecapture mode. The processed image frames can be displayed on the displayunit 151 or stored in memory 170. In some cases, the cameras 121 may bearranged in a matrix configuration to permit a plurality of imageshaving various angles or focal points to be input to the mobile terminal100. As another example, the cameras 121 may be located in astereoscopic arrangement to acquire left and right images forimplementing a stereoscopic image.

The microphone 122 is generally implemented to permit audio input to themobile terminal 100. The audio input can be processed in various mannersaccording to a function being executed in the mobile terminal 100. Ifdesired, the microphone 122 may include assorted noise removingalgorithms to remove unwanted noise generated in the course of receivingthe external audio.

The user input unit 123 is a component that permits input by a user.Such user input may enable the controller 180 to control operation ofthe mobile terminal 100. The user input unit 123 may include one or moreof a mechanical input element (for example, a key, a button located on afront and/or rear surface or a side surface of the mobile terminal 100,a dome switch, a jog wheel, a jog switch, and the like), or atouch-sensitive input, among others. As one example, the touch-sensitiveinput may be a virtual key or a soft key, which is displayed on a touchscreen through software processing, or a touch key which is located onthe mobile terminal at a location that is other than the touch screen.Further, the virtual key or the visual key may be displayed on the touchscreen in various shapes, for example, graphic, text, icon, video, or acombination thereof.

The sensing unit 140 is generally configured to sense one or more ofinternal information of the mobile terminal, surrounding environmentinformation of the mobile terminal, user information, or the like. Thecontroller 180 generally cooperates with the sending unit 140 to controloperation of the mobile terminal 100 or execute data processing, afunction or an operation associated with an application programinstalled in the mobile terminal based on the sensing provided by thesensing unit 140. The sensing unit 140 may be implemented using any of avariety of sensors, some of which will now be described in more detail.

The proximity sensor 141 may include a sensor to sense presence orabsence of an object approaching a surface, or an object located near asurface, by using an electromagnetic field, infrared rays, or the likewithout a mechanical contact. The proximity sensor 141 may be arrangedat an inner region of the mobile terminal covered by the touch screen,or near the touch screen.

The proximity sensor 141, for example, may include any of a transmissivetype photoelectric sensor, a direct reflective type photoelectricsensor, a mirror reflective type photoelectric sensor, a high-frequencyoscillation proximity sensor, a capacitance type proximity sensor, amagnetic type proximity sensor, an infrared rays proximity sensor, andthe like. When the touch screen is implemented as a capacitance type,the proximity sensor 141 can sense proximity of a pointer relative tothe touch screen by changes of an electromagnetic field, which isresponsive to an approach of an object with conductivity. In thisinstance, the touch screen (touch sensor) may also be categorized as aproximity sensor.

The term “proximity touch” will often be referred to herein to denotethe scenario in which a pointer is positioned to be proximate to thetouch screen without contacting the touch screen. The term “contacttouch” will often be referred to herein to denote the scenario in whicha pointer makes physical contact with the touch screen. For the positioncorresponding to the proximity touch of the pointer relative to thetouch screen, such position will correspond to a position where thepointer is perpendicular to the touch screen. The proximity sensor 141may sense proximity touch, and proximity touch patterns (for example,distance, direction, speed, time, position, moving status, and thelike).

In general, controller 180 processes data corresponding to proximitytouches and proximity touch patterns sensed by the proximity sensor 141,and cause output of visual information on the touch screen. In addition,the controller 180 can control the mobile terminal 100 to executedifferent operations or process different data according to whether atouch with respect to a point on the touch screen is either a proximitytouch or a contact touch.

A touch sensor can sense a touch applied to the touch screen, such asdisplay unit 151, using any of a variety of touch methods. Examples ofsuch touch methods include a resistive type, a capacitive type, aninfrared type, and a magnetic field type, among others. As one example,the touch sensor may be configured to convert changes of pressureapplied to a specific part of the display unit 151, or convertcapacitance occurring at a specific part of the display unit 151, intoelectric input signals. The touch sensor may also be configured to sensenot only a touched position and a touched area, but also touch pressureand/or touch capacitance. A touch object is generally used to apply atouch input to the touch sensor. Examples of typical touch objectsinclude a finger, a touch pen, a stylus pen, a pointer, or the like.

When a touch input is sensed by a touch sensor, corresponding signalsmay be transmitted to a touch controller. The touch controller mayprocess the received signals, and then transmit corresponding data tothe controller 180. Accordingly, the controller 180 can sense whichregion of the display unit 151 has been touched. Here, the touchcontroller may be a component separate from the controller 180, thecontroller 180, and combinations thereof.

In some embodiments, the controller 180 can execute the same ordifferent controls according to a type of touch object that touches thetouch screen or a touch key provided in addition to the touch screen.Whether to execute the same or different control according to the objectwhich provides a touch input may be decided based on a current operatingstate of the mobile terminal 100 or a currently executed applicationprogram, for example.

The touch sensor and the proximity sensor may be implementedindividually, or in combination, to sense various types of touches. Suchtouches includes a short (or tap) touch, a long touch, a multi-touch, adrag touch, a flick touch, a pinch-in touch, a pinch-out touch, a swipetouch, a hovering touch, and the like.

If desired, an ultrasonic sensor may be implemented to recognizeposition information relating to a touch object using ultrasonic waves.The controller 180, for example, may calculate a position of a wavegeneration source based on information sensed by an illumination sensorand a plurality of ultrasonic sensors. Since light is much faster thanultrasonic waves, the time for which the light reaches the opticalsensor is much shorter than the time for which the ultrasonic wavereaches the ultrasonic sensor. The position of the wave generationsource may be calculated using this fact. For instance, the position ofthe wave generation source may be calculated using the time differencefrom the time that the ultrasonic wave reaches the sensor based on thelight as a reference signal.

The camera 121 typically includes at least one a camera sensor (CCD,CMOS etc.), a photo sensor (or image sensors), and a laser sensor.Implementing the camera 121 with a laser sensor may allow detection of atouch of a physical object with respect to a 3D stereoscopic image. Thephoto sensor may be laminated on, or overlapped with, the displaydevice. The photo sensor may be configured to scan movement of thephysical object in proximity to the touch screen. In more detail, thephoto sensor may include photo diodes and transistors at rows andcolumns to scan content received at the photo sensor using an electricalsignal which changes according to the quantity of applied light. Namely,the photo sensor may calculate the coordinates of the physical objectaccording to variation of light to thus obtain position information ofthe physical object.

The display unit 151 is generally configured to output informationprocessed in the mobile terminal 100. For example, the display unit 151may display execution screen information of an application programexecuting at the mobile terminal 100 or user interface (UI) and graphicuser interface (GUI) information in response to the execution screeninformation.

In some embodiments, the display unit 151 may be implemented as astereoscopic display unit for displaying stereoscopic images. A typicalstereoscopic display unit may employ a stereoscopic display scheme suchas a stereoscopic scheme (a glass scheme), an auto-stereoscopic scheme(glassless scheme), a projection scheme (holographic scheme), or thelike.

In general, a 3D stereoscopic image may include a left image (e.g., aleft eye image) and a right image (e.g., a right eye image). Accordingto how left and right images are combined into a 3D stereoscopic image,a 3D stereoscopic imaging method can be divided into a top-down methodin which left and right images are located up and down in a frame, anL-to-R (left-to-right or side by side) method in which left and rightimages are located left and right in a frame, a checker board method inwhich fragments of left and right images are located in a tile form, aninterlaced method in which left and right images are alternately locatedby columns or rows, and a time sequential (or frame by frame) method inwhich left and right images are alternately displayed on a time basis.

Also, as for a 3D thumbnail image, a left image thumbnail and a rightimage thumbnail can be generated from a left image and a right image ofan original image frame, respectively, and then combined to generate asingle 3D thumbnail image. In general, the term “thumbnail” may be usedto refer to a reduced image or a reduced still image. A generated leftimage thumbnail and right image thumbnail may be displayed with ahorizontal distance difference there between by a depth corresponding tothe disparity between the left image and the right image on the screen,thereby providing a stereoscopic space sense.

A left image and a right image required for implementing a 3Dstereoscopic image may be displayed on the stereoscopic display unitusing a stereoscopic processing unit. The stereoscopic processing unitcan receive the 3D image and extract the left image and the right image,or can receive the 2D image and change it into a left image and a rightimage.

The audio output module 152 is generally configured to output audiodata. Such audio data may be obtained from any of a number of differentsources, such that the audio data may be received from the wirelesscommunication unit 110 or may have been stored in the memory 170. Theaudio data may be output during modes such as a signal reception mode, acall mode, a record mode, a voice recognition mode, a broadcastreception mode, and the like. The audio output module 152 can provideaudible output related to a particular function (e.g., a call signalreception sound, a message reception sound, etc.) performed by themobile terminal 100. The audio output module 152 may also be implementedas a receiver, a speaker, a buzzer, or the like.

A haptic module 153 can be configured to generate various tactileeffects that a user feels, perceive, or otherwise experience. A typicalexample of a tactile effect generated by the haptic module 153 isvibration. The strength, pattern and the like of the vibration generatedby the haptic module 153 can be controlled by user selection or settingby the controller. For example, the haptic module 153 may outputdifferent vibrations in a combining manner or a sequential manner.

Besides vibration, the haptic module 153 can generate various othertactile effects, including an effect by stimulation such as a pinarrangement vertically moving to contact skin, a spray force or suctionforce of air through a jet orifice or a suction opening, a touch to theskin, a contact of an electrode, electrostatic force, an effect byreproducing the sense of cold and warmth using an element that canabsorb or generate heat, and the like.

The haptic module 153 can also be implemented to allow the user to feela tactile effect through a muscle sensation such as the user's fingersor arm, as well as transferring the tactile effect through directcontact. Two or more haptic modules 153 may be provided according to theparticular configuration of the mobile terminal 100.

An optical output module 154 can output a signal for indicating an eventgeneration using light of a light source. Examples of events generatedin the mobile terminal 100 can include message reception, call signalreception, a missed call, an alarm, a schedule notice, an emailreception, information reception through an application, and the like.

A signal output by the optical output module 154 may be implemented sothe mobile terminal emits monochromatic light or light with a pluralityof colors. The signal output may be terminated as the mobile terminalsenses that a user has checked the generated event, for example.

The interface unit 160 serves as an interface for external devices to beconnected with the mobile terminal 100. For example, the interface unit160 can receive data transmitted from an external device, receive powerto transfer to elements and components within the mobile terminal 100,or transmit internal data of the mobile terminal 100 to such externaldevice. The interface unit 160 may include wired or wireless headsetports, external power supply ports, wired or wireless data ports, memorycard ports, ports for connecting a device having an identificationmodule, audio input/output (I/O) ports, video I/O ports, earphone ports,or the like.

The identification module may be a chip that stores various informationfor authenticating authority of using the mobile terminal 100 and mayinclude a user identity module (UIM), a subscriber identity module(SIM), a universal subscriber identity module (USIM), and the like. Inaddition, the device having the identification module (also referred toherein as an “identifying device”) may take the form of a smart card.Accordingly, the identifying device can be connected with the terminal100 via the interface unit 160.

When the mobile terminal 100 is connected with an external cradle, theinterface unit 160 can serve as a passage to allow power from the cradleto be supplied to the mobile terminal 100 or may serve as a passage toallow various command signals input by the user from the cradle to betransferred to the mobile terminal there through. Various commandsignals or power input from the cradle may operate as signals forrecognizing that the mobile terminal is properly mounted on the cradle.

The memory 170 can store programs to support operations of thecontroller 180 and store input/output data (for example, phonebook,messages, still images, videos, etc.). The memory 170 may store datarelated to various patterns of vibrations and audio which are output inresponse to touch inputs on the touch screen.

The memory 170 may include one or more types of storage mediumsincluding a Flash memory, a hard disk, a solid state disk, a silicondisk, a multimedia card micro type, a card-type memory (e.g., SD or DXmemory, etc.), a Random Access Memory (RAM), a Static Random AccessMemory (SRAM), a Read-Only Memory (ROM), an Electrically ErasableProgrammable Read-Only Memory (EEPROM), a Programmable Read-Only memory(PROM), a magnetic memory, a magnetic disk, an optical disk, and thelike. The mobile terminal 100 can also be operated in relation to anetwork storage device that performs the storage function of the memory170 over a network, such as the Internet.

The controller 180 can typically control the general operations of themobile terminal 100. For example, the controller 180 can set or releasea lock state for restricting a user from inputting a control commandwith respect to applications when a status of the mobile terminal meetsa preset condition.

The controller 180 can also perform the controlling and processingassociated with voice calls, data communications, video calls, and thelike, or perform pattern recognition processing to recognize ahandwriting input or a picture drawing input performed on the touchscreen as characters or images, respectively. In addition, thecontroller 180 can control one or a combination of those components inorder to implement various exemplary embodiments disclosed herein.

The power supply unit 190 receives external power or provides internalpower and supplies the appropriate power required for operatingrespective elements and components included in the mobile terminal 100.The power supply unit 190 may include a battery, which is typicallyrechargeable or be detachably coupled to the terminal body for charging.

The power supply unit 190 may include a connection port. The connectionport may be configured as one example of the interface unit 160 to whichan external charger for supplying power to recharge the battery iselectrically connected. As another example, the power supply unit 190may be configured to recharge the battery in a wireless manner withoutuse of the connection port. In this example, the power supply unit 190can receive power, transferred from an external wireless powertransmitter, using at least one of an inductive coupling method which isbased on magnetic induction or a magnetic resonance coupling methodwhich is based on electromagnetic resonance. Various embodimentsdescribed herein may be implemented in a computer-readable medium, amachine-readable medium, or similar medium using, for example, software,hardware, or any combination thereof.

Referring now to FIGS. 1B and 1C, the mobile terminal 100 is describedwith reference to a bar-type terminal body. However, the mobile terminal100 can alternatively be implemented in any of a variety of differentconfigurations. Examples of such configurations include watch-type,clip-type, glasses-type, or as a folder-type, flip-type, slide-type,swing-type, and swivel-type in which two and more bodies are combinedwith each other in a relatively movable manner, and combinationsthereof. Discussion herein will often relate to a particular type ofmobile terminal (for example, bar-type, watch-type, glasses-type, andthe like). However, such teachings with regard to a particular type ofmobile terminal will generally apply to other types of mobile terminalsas well.

The mobile terminal 100 will generally include a case (for example,frame, housing, cover, and the like) forming the appearance of theterminal. In this embodiment, the case is formed using a front case 101and a rear case 102. Various electronic components are incorporated intoa space formed between the front case 101 and the rear case 102. Atleast one middle case may be additionally positioned between the frontcase 101 and the rear case 102.

The display unit 151 is shown located on the front side of the terminalbody to output information. As illustrated, a window 151 a of thedisplay unit 151 may be mounted to the front case 101 to form the frontsurface of the terminal body together with the front case 101.

In some embodiments, electronic components may also be mounted to therear case 102. Examples of such electronic components include adetachable battery 191, an identification module, a memory card, and thelike. Rear cover 103 is shown covering the electronic components, andthis cover may be detachably coupled to the rear case 102. Therefore,when the rear cover 103 is detached from the rear case 102, theelectronic components mounted to the rear case 102 are externallyexposed.

As illustrated, when the rear cover 103 is coupled to the rear case 102,a side surface of the rear case 102 is partially exposed. In some cases,upon the coupling, the rear case 102 may also be completely shielded bythe rear cover 103. In some embodiments, the rear cover 103 may includean opening for externally exposing a camera 121 b or an audio outputmodule 152 b.

The cases 101, 102, 103 may be formed by injection-molding syntheticresin or may be formed of a metal, for example, stainless steel (STS),aluminum (Al), titanium (Ti), or the like. As an alternative to theexample in which the plurality of cases form an inner space foraccommodating components, the mobile terminal 100 can be configured suchthat one case forms the inner space. In this example, a mobile terminal100 having a uni-body is formed so synthetic resin or metal extends froma side surface to a rear surface.

If desired, the mobile terminal 100 can include a waterproofing unit forpreventing introduction of water into the terminal body. For example,the waterproofing unit may include a waterproofing member which islocated between the window 151 a and the front case 101, between thefront case 101 and the rear case 102, or between the rear case 102 andthe rear cover 103, to hermetically seal an inner space when those casesare coupled.

The mobile terminal includes a display unit 151, a first and a secondaudio output modules 151 a/151 b, a proximity sensor 141, anillumination sensor 142, an optical output module 154, a first and asecond cameras 121 a/121 b, first and second manipulation units 123a/123 b, a microphone 122, interface unit 160 and the like.

It will be described for the mobile terminal as shown in FIGS. 1B and1C. The display unit 151, the first audio output module 151 a, theproximity sensor 141, an illumination sensor 142, the optical outputmodule 154, the first camera 121 a and the first manipulation unit 123 aare arranged in front surface of the terminal body, the secondmanipulation unit 123 b, the microphone 122 and interface unit 160 arearranged in side surface of the terminal body, and the second audiooutput modules 151 b and the second camera 121 b are arranged in rearsurface of the terminal body.

However, alternative arrangements are possible and within the teachingsof the instant disclosure. Some components may be omitted or rearranged.For example, the first manipulation unit 123 a may be located on anothersurface of the terminal body, and the second audio output module 152 bmay be located on the side surface of the terminal body.

The display unit 151 outputs information processed in the mobileterminal 100. The display unit 151 may be implemented using one or moresuitable display devices. Examples of such suitable display devicesinclude a liquid crystal display (LCD), a thin film transistor-liquidcrystal display (TFT-LCD), an organic light emitting diode (OLED), aflexible display, a 3-dimensional (3D) display, an e-ink display, andcombinations thereof.

The display unit 151 may be implemented using two display devices, whichcan implement the same or different display technology. For instance, aplurality of the display units 151 may be arranged on one side, eitherspaced apart from each other, or these devices may be integrated, orthese devices may be arranged on different surfaces.

The display unit 151 may also include a touch sensor which senses atouch input received at the display unit. When a touch is input to thedisplay unit 151, the touch sensor may be configured to sense this touchand the controller 180, for example, may generate a control command orother signal corresponding to the touch. The content which is input inthe touching manner may be a text or numerical value, or a menu itemwhich can be indicated or designated in various modes.

The touch sensor may be configured in a form of a film having a touchpattern, disposed between the window 151 a and a display on a rearsurface of the window 151 a, or a metal wire which is patterned directlyon the rear surface of the window 151 a. Alternatively, the touch sensormay be integrally formed with the display. For example, the touch sensormay be disposed on a substrate of the display or within the display.

The display unit 151 may also form a touch screen together with thetouch sensor. Here, the touch screen may serve as the user input unit123 (see FIG. 1A). Therefore, the touch screen may replace at least someof the functions of the first manipulation unit 123 a. The first audiooutput module 152 a may be implemented in the form of a speaker tooutput voice audio, alarm sounds, multimedia audio reproduction, and thelike.

The window 151 a of the display unit 151 will typically include anaperture to permit audio generated by the first audio output module 152a to pass. One alternative is to allow audio to be released along anassembly gap between the structural bodies (for example, a gap betweenthe window 151 a and the front case 101). In this instance, a holeindependently formed to output audio sounds may not be seen or isotherwise hidden in terms of appearance, thereby further simplifying theappearance and manufacturing of the mobile terminal 100.

The optical output module 154 can be configured to output light forindicating an event generation. Examples of such events include amessage reception, a call signal reception, a missed call, an alarm, aschedule notice, an email reception, information reception through anapplication, and the like. When a user has checked a generated event,the controller can control the optical output unit 154 to stop the lightoutput.

The first camera 121 a can process image frames such as still or movingimages obtained by the image sensor in a capture mode or a video callmode. The processed image frames can then be displayed on the displayunit 151 or stored in the memory 170.

The first and second manipulation units 123 a and 123 b are examples ofthe user input unit 123, which may be manipulated by a user to provideinput to the mobile terminal 100. The first and second manipulationunits 123 a and 123 b may also be commonly referred to as a manipulatingportion, and may employ any tactile method that allows the user toperform manipulation such as touch, push, scroll, or the like. The firstand second manipulation units 123 a and 123 b may also employ anynon-tactile method that allows the user to perform manipulation such asproximity touch, hovering, or the like.

FIG. 1B illustrates the first manipulation unit 123 a as a touch key,but possible alternatives include a mechanical key, a push key, a touchkey, and combinations thereof. Input received at the first and secondmanipulation units 123 a and 123 b may be used in various ways. Forexample, the first manipulation unit 123 a may be used by the user toprovide an input to a menu, home key, cancel, search, or the like, andthe second manipulation unit 123 b may be used by the user to provide aninput to control a volume level being output from the first or secondaudio output modules 152 a or 152 b, to switch to a touch recognitionmode of the display unit 151, or the like.

As another example of the user input unit 123, a rear input unit may belocated on the rear surface of the terminal body. The rear input unitcan be manipulated by a user to provide input to the mobile terminal100. The input may be used in a variety of different ways. For example,the rear input unit may be used by the user to provide an input forpower on/off, start, end, scroll, control volume level being output fromthe first or second audio output modules 152 a or 152 b, switch to atouch recognition mode of the display unit 151, and the like. The rearinput unit may be configured to permit touch input, a push input, orcombinations thereof.

The rear input unit may be located to overlap the display unit 151 ofthe front side in a thickness direction of the terminal body. As oneexample, the rear input unit may be located on an upper end portion ofthe rear side of the terminal body such that a user can easilymanipulate it using a forefinger when the user grabs the terminal bodywith one hand. Alternatively, the rear input unit can be positioned atmost any location of the rear side of the terminal body.

Embodiments that include the rear input unit may implement some or allof the functionality of the first manipulation unit 123 a in the rearinput unit. As such, in situations where the first manipulation unit 123a is omitted from the front side, the display unit 151 can have a largerscreen.

As a further alternative, the mobile terminal 100 can include a fingerscan sensor which scans a user's fingerprint. The controller 180 canthen use fingerprint information sensed by the finger scan sensor aspart of an authentication procedure. The finger scan sensor may also beinstalled in the display unit 151 or implemented in the user input unit123. The microphone 122 is shown located at an end of the mobileterminal 100, but other locations are possible. If desired, multiplemicrophones may be implemented, with such an arrangement permitting thereceiving of stereo sounds.

The interface unit 160 may serve as a path allowing the mobile terminal100 to interface with external devices. For example, the interface unit160 may include one or more of a connection terminal for connecting toanother device (for example, an earphone, an external speaker, or thelike), a port for near field communication (for example, an InfraredData Association (IrDA) port, a Bluetooth port, a wireless LAN port, andthe like), or a power supply terminal for supplying power to the mobileterminal 100. The interface unit 160 may be implemented in the form of asocket for accommodating an external card, such as SubscriberIdentification Module (SIM), User Identity Module (UIM), or a memorycard for information storage.

The second camera 121 b is shown located at the rear side of theterminal body and includes an image capturing direction that issubstantially opposite to the image capturing direction of the firstcamera unit 121 a. If desired, second camera 121 a may alternatively belocated at other locations, or made to be moveable, in order to have adifferent image capturing direction from that which is shown.

The second camera 121 b can include a plurality of lenses arranged alongat least one line. The plurality of lenses may also be arranged in amatrix configuration. The cameras may be referred to as an “arraycamera.” When the second camera 121 b is implemented as an array camera,images may be captured in various manners using the plurality of lensesand images with better qualities.

As shown in FIG. 1C, a flash 124 is shown adjacent to the second camera121 b. When an image of a subject is captured with the camera 121 b, theflash 124 may illuminate the subject. As shown in FIG. 1C, the secondaudio output module 152 b can be located on the terminal body. Thesecond audio output module 152 b may implement stereophonic soundfunctions in conjunction with the first audio output module 152 a, andmay be also used for implementing a speaker phone mode for callcommunication.

At least one antenna for wireless communication may be located on theterminal body. The antenna may be installed in the terminal body orformed by the case. For example, an antenna which configures a part ofthe broadcast receiving module 111 may be retractable into the terminalbody. Alternatively, an antenna may be formed using a film attached toan inner surface of the rear cover 103, or a case that includes aconductive material.

A power supply unit 190 for supplying power to the mobile terminal 100can include a battery 191, which is mounted in the terminal body ordetachably coupled to an outside of the terminal body. The battery 191may receive power via a power source cable connected to the interfaceunit 160. Also, the battery 191 can be recharged in a wireless mannerusing a wireless charger. Wireless charging may be implemented bymagnetic induction or electromagnetic resonance.

The rear cover 103 is shown coupled to the rear case 102 for shieldingthe battery 191, to prevent separation of the battery 191, and toprotect the battery 191 from an external impact or from foreignmaterial. When the battery 191 is detachable from the terminal body, therear case 103 may be detachably coupled to the rear case 102.

An accessory for protecting an appearance or assisting or extending thefunctions of the mobile terminal 100 can also be provided on the mobileterminal 100. As one example of an accessory, a cover or pouch forcovering or accommodating at least one surface of the mobile terminal100 can be provided. The cover or pouch may cooperate with the displayunit 151 to extend the function of the mobile terminal 100. Anotherexample of the accessory is a touch pen for assisting or extending atouch input to a touch screen.

FIG. 2 is a conceptual view of a deformable mobile terminal according toan alternative embodiment. In this figure, mobile terminal 200 is shownhaving display unit 251, which is a type of display that is deformableby an external force. This deformation, which includes display unit 251and other components of mobile terminal 200, may include any of curving,bending, folding, twisting, rolling, and combinations thereof. Thedeformable display unit 251 may also be referred to as a “flexibledisplay unit.” In some implementations, the flexible display unit 251may include a general flexible display, electronic paper (also known ase-paper), and combinations thereof. In general, mobile terminal 200 maybe configured to include features that are the same or similar to thatof mobile terminal 100 of FIGS. 1A-1C.

The flexible display of mobile terminal 200 is generally formed as alightweight, non-fragile display, which still exhibits characteristicsof a conventional flat panel display, but is instead fabricated on aflexible substrate which can be deformed as noted previously.

The term e-paper may be used to refer to a display technology employingthe characteristic of a general ink, and is different from theconventional flat panel display in view of using reflected light.E-paper is generally understood as changing displayed information usinga twist ball or via electrophoresis using a capsule.

When the flexible display unit 251 is not deformed (for example, in astate with an infinite radius of curvature and referred to as a firststate), a display region of the flexible display unit 251 includes agenerally flat surface. When the flexible display unit 251 is deformedfrom the first state by an external force (for example, a state with afinite radius of curvature and referred to as a second state), thedisplay region may become a curved surface or a bent surface. Asillustrated, information displayed in the second state may be visualinformation output on the curved surface. The visual information may berealized so a light emission of each unit pixel (sub-pixel) arranged ina matrix configuration is controlled independently. The unit pixeldenotes an elementary unit for representing one color.

According to one alternative embodiment, the first state of the flexibledisplay unit 251 may be a curved state (for example, a state of beingcurved from up to down or from right to left), instead of being in flatstate. In this embodiment, when an external force is applied to theflexible display unit 251, the flexible display unit 251 may transitionto the second state such that the flexible display unit is deformed intothe flat state (or a less curved state) or into a more curved state.

If desired, the flexible display unit 251 may implement a flexible touchscreen using a touch sensor in combination with the display. When atouch is received at the flexible touch screen, the controller 180 canexecute certain control corresponding to the touch input. In general,the flexible touch screen is configured to sense touch and other inputwhile in both the first and second states.

One option is to configure the mobile terminal 200 to include adeformation sensor which senses the deforming of the flexible displayunit 251. The deformation sensor may be included in the sensing unit140.

The deformation sensor may be located in the flexible display unit 251or the case 201 to sense information related to the deforming of theflexible display unit 251. Examples of such information related to thedeforming of the flexible display unit 251 may be a deformed direction,a deformed degree, a deformed position, a deformed amount of time, anacceleration that the deformed flexible display unit 251 is restored,and the like. Other possibilities include most any type of informationwhich can be sensed in response to the curving of the flexible displayunit or sensed while the flexible display unit 251 is transitioninginto, or existing in, the first and second states.

In some embodiments, controller 180 or other component can changeinformation displayed on the flexible display unit 251, or generate acontrol signal for controlling a function of the mobile terminal 200,based on the information related to the deforming of the flexibledisplay unit 251. Such information is typically sensed by thedeformation sensor.

The mobile terminal 200 is shown having a case 201 for accommodating theflexible display unit 251. The case 201 can be deformable together withthe flexible display unit 251, taking into account the characteristicsof the flexible display unit 251.

A battery located in the mobile terminal 200 may also be deformable incooperation with the flexible display unit 261, taking into account thecharacteristic of the flexible display unit 251. One technique toimplement such a battery is to use a stack and folding method ofstacking battery cells.

The deformation of the flexible display unit 251 not limited to performby an external force. For example, the flexible display unit 251 can bedeformed into the second state from the first state by a user command,application command, or the like.

In accordance with still further embodiments, a mobile terminal may beconfigured as a device which is wearable on a human body. Such devicesgo beyond the usual technique of a user grasping the mobile terminalusing their hand. Examples of the wearable device include a smart watch,a smart glass, a head mounted display (HMD), and the like.

A typical wearable device can exchange data with (or cooperate with)another mobile terminal 100. In such a device, the wearable devicegenerally has functionality that is less than the cooperating mobileterminal. For instance, the short-range communication module 114 of amobile terminal 100 can sense or recognize a wearable device that isnear-enough to communicate with the mobile terminal. In addition, whenthe sensed wearable device is a device which is authenticated tocommunicate with the mobile terminal 100, the controller 180 cantransmit data processed in the mobile terminal 100 to the wearabledevice via the short-range communication module 114, for example. Hence,a user of the wearable device can use the data processed in the mobileterminal 100 on the wearable device. For example, when a call isreceived in the mobile terminal 100, the user can answer the call usingthe wearable device. Also, when a message is received in the mobileterminal 100, the user can check the received message using the wearabledevice.

FIG. 3 is a perspective view illustrating one example of a watch-typemobile terminal 300 in accordance with another exemplary embodiment. Asillustrated in FIG. 3, the watch-type mobile terminal 300 includes amain body 301 with a display unit 351 and a band 302 connected to themain body 301 to be wearable on a wrist. In general, mobile terminal 300may be configured to include features that are the same or similar tothat of mobile terminal 100 of FIGS. 1A-1C.

The main body 301 may include a case having a certain appearance. Asillustrated, the case may include a first case 301 a and a second case301 b cooperatively defining an inner space for accommodating variouselectronic components. Other configurations are possible. For instance,a single case may alternatively be implemented, with such a case beingconfigured to define the inner space, thereby implementing a mobileterminal 300 with a uni-body.

The watch-type mobile terminal 300 can perform wireless communication,and an antenna for the wireless communication can be installed in themain body 301. The antenna may extend its function using the case. Forexample, a case including a conductive material may be electricallyconnected to the antenna to extend a ground area or a radiation area.

The display unit 351 is shown located at the front side of the main body301 so that displayed information is viewable to a user. In someembodiments, the display unit 351 includes a touch sensor so that thedisplay unit can function as a touch screen. As illustrated, window 351a is positioned on the first case 301 a to form a front surface of theterminal body together with the first case 301 a.

The illustrated embodiment includes audio output module 352, a camera321, a microphone 322, and a user input unit 323 positioned on the mainbody 301. When the display unit 351 is implemented as a touch screen,additional function keys may be minimized or eliminated. For example,when the touch screen is implemented, the user input unit 323 may beomitted.

The band 302 is commonly worn on the user's wrist and may be made of aflexible material for facilitating wearing of the device. As oneexample, the band 302 may be made of fur, rubber, silicon, syntheticresin, or the like. The band 302 may also be configured to be detachablefrom the main body 301. Accordingly, the band 302 may be replaceablewith various types of bands according to a user's preference.

In one configuration, the band 302 may be used for extending theperformance of the antenna. For example, the band may include therein aground extending portion electrically connected to the antenna to extenda ground area. The band 302 may include fastener 302 a. The fastener 302a may be implemented into a buckle type, a snap-fit hook structure, aVelcro® type, or the like, and include a flexible section or material.The drawing illustrates an example that the fastener 302 a isimplemented using a buckle.

FIG. 4 is a perspective view illustrating one example of a glass-typemobile terminal 400 according to another exemplary embodiment. Theglass-type mobile terminal 400 can be wearable on a head of a human bodyand provided with a frame (case, housing, etc.) therefor. The frame maybe made of a flexible material to be easily worn. The frame of mobileterminal 400 is shown having a first frame 401 and a second frame 402,which can be made of the same or different materials. In general, mobileterminal 400 may be configured to include features that are the same orsimilar to that of mobile terminal 100 of FIGS. 1A-1C.

The frame may be supported on the head and defines a space for mountingvarious components. As illustrated, electronic components, such as acontrol module 480, an audio output module 452, and the like, may bemounted to the frame part. Also, a lens 403 for covering either or bothof the left and right eyes may be detachably coupled to the frame part.

The control module 480 controls various electronic components disposedin the mobile terminal 400. The control module 480 may be understood asa component corresponding to the aforementioned controller 180. FIG. 4illustrates that the control module 480 is installed in the frame parton one side of the head, but other locations are possible.

The display unit 451 may be implemented as a head mounted display (HMD).The HMD refers to display techniques by which a display is mounted to ahead to show an image directly in front of a user's eyes. In order toprovide an image directly in front of the user's eyes when the userwears the glass-type mobile terminal 400, the display unit 451 may belocated to correspond to either or both of the left and right eyes. FIG.4 illustrates that the display unit 451 is located on a portioncorresponding to the right eye to output an image viewable by the user'sright eye.

The display unit 451 may project an image into the user's eye using aprism. Also, the prism may be formed from optically transparent materialsuch that the user can view both the projected image and a generalvisual field (a range that the user views through the eyes) in front ofthe user.

In such a manner, the image output through the display unit 451 may beviewed while overlapping with the general visual field. The mobileterminal 400 may provide an augmented reality (AR) by overlaying avirtual image on a realistic image or background using the display.

The camera 421 may be located adjacent to either or both of the left andright eyes to capture an image. Since the camera 421 is located adjacentto the eye, the camera 421 can acquire a scene that the user iscurrently viewing. The camera 421 may be positioned at most any locationof the mobile terminal. In some embodiments, multiple cameras 421 may beutilized. Such multiple cameras 421 may be used to acquire astereoscopic image.

The glass-type mobile terminal 400 may include user input units 423 aand 423 b, which can each be manipulated by the user to provide aninput. The user input units 423 a and 423 b may employ techniques whichpermit input via a tactile input. Typical tactile inputs include atouch, push, or the like. The user input units 423 a and 423 b are shownoperable in a pushing manner and a touching manner as they are locatedon the frame part and the control module 480, respectively.

If desired, mobile terminal 400 may include a microphone which processesinput sound into electric audio data, and an audio output module 452 foroutputting audio. The audio output module 452 may be configured toproduce audio in a general audio output manner or an osteoconductivemanner. When the audio output module 452 is implemented in theosteoconductive manner, the audio output module 452 may be closelyadhered to the head when the user wears the mobile terminal 400 andvibrate the user's skull to transfer sounds.

A communication system which is operable with the variously describedmobile terminals will now be described in more detail. Such acommunication system may be configured to utilize any of a variety ofdifferent air interfaces and/or physical layers. Examples of such airinterfaces utilized by the communication system include FrequencyDivision Multiple Access (FDMA), Time Division Multiple Access (TDMA),Code Division Multiple Access (CDMA), Universal MobileTelecommunications System (UMTS) (including, Long Term Evolution (LTE),LTE-A (Long Term Evolution-Advanced)), Global System for MobileCommunications (GSM), and the like.

By way of a non-limiting example only, further description will relateto a CDMA communication system, but such teachings apply equally toother system types including a CDMA wireless communication system aswell as OFDM(Orthogonal Frequency Division Multiplexing) wirelesscommunication system. A CDMA wireless communication system generallyincludes one or more mobile terminals (MT or User Equipment, UE) 100,one or more base stations (BSs, NodeB, or evolved NodeB), one or morebase station controllers (BSCs), and a mobile switching center (MSC).The MSC is configured to interface with a conventional Public SwitchedTelephone Network (PSTN) and the BSCs. The BSCs are coupled to the basestations via backhaul lines. The backhaul lines may be configured inaccordance with any of several known interfaces including, for example,E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. Hence, theplurality of BSCs can be included in the CDMA wireless communicationsystem.

Each base station may include one or more sectors, each sector having anomni-directional antenna or an antenna pointed in a particular directionradially away from the base station. Alternatively, each sector mayinclude two or more different antennas. Each base station may beconfigured to support a plurality of frequency assignments, with eachfrequency assignment having a particular spectrum (e.g., 1.25 MHz, 5MHz, etc.).

The intersection of sector and frequency assignment may be referred toas a CDMA channel. The base stations may also be referred to as BaseStation Transceiver Subsystems (BTSs). In some cases, the term “basestation” may be used to refer collectively to a BSC, and one or morebase stations. The base stations may also be denoted as “cell sites.”Alternatively, individual sectors of a given base station may bereferred to as cell sites.

A broadcasting transmitter (BT) transmits a broadcast signal to themobile terminals 100 operating within the system. The broadcastreceiving module 111 of FIG. 1A is typically configured inside themobile terminal 100 to receive broadcast signals transmitted by the BT.

Global Positioning System (GPS) satellites for locating the position ofthe mobile terminal 100, for example, may cooperate with the CDMAwireless communication system. Useful position information may beobtained with greater or fewer satellites than two satellites. It is tobe appreciated that other types of position detection technology, (i.e.,location technology that may be used in addition to or instead of GPSlocation technology) may alternatively be implemented. If desired, atleast one of the GPS satellites may alternatively or additionally beconfigured to provide satellite DMB transmissions.

The location information module 115 is generally configured to detect,calculate, or otherwise identify a position of the mobile terminal. Asan example, the location information module 115 may include a GlobalPosition System (GPS) module, a Wi-Fi module, or both. If desired, thelocation information module 115 may alternatively or additionallyfunction with any of the other modules of the wireless communicationunit 110 to obtain data related to the position of the mobile terminal.

A typical GPS module 115 can measure an accurate time and distance fromthree or more satellites, and accurately calculate a current location ofthe mobile terminal according to trigonometry based on the measured timeand distances. A method of acquiring distance and time information fromthree satellites and performing error correction with a single satellitemay be used. In particular, the GPS module may acquire an accurate timetogether with three-dimensional speed information as well as thelocation of the latitude, longitude and altitude values from thelocation information received from the satellites.

Furthermore, the GPS module can acquire speed information in real timeto calculate a current position. Sometimes, accuracy of a measuredposition may be compromised when the mobile terminal is located in ablind spot of satellite signals, such as being located in an indoorspace. In order to minimize the effect of such blind spots, analternative or supplemental location technique, such as Wi-FiPositioning System (WPS), may be utilized.

The Wi-Fi positioning system (WPS) refers to a location determinationtechnology based on a wireless local area network (WLAN) using Wi-Fi asa technology for tracking the location of the mobile terminal 100. Thistechnology typically includes the use of a Wi-Fi module in the mobileterminal 100 and a wireless access point for communicating with theWi-Fi module. The Wi-Fi positioning system may include a Wi-Fi locationdetermination server, a mobile terminal, a wireless access point (AP)connected to the mobile terminal, and a database stored with wireless APinformation.

The mobile terminal connected to the wireless AP may transmit a locationinformation request message to the Wi-Fi location determination server.The Wi-Fi location determination server extracts the information of thewireless AP connected to the mobile terminal 100, based on the locationinformation request message (or signal) of the mobile terminal 100. Theinformation of the wireless AP may be transmitted to the Wi-Fi locationdetermination server through the mobile terminal 100, or may betransmitted to the Wi-Fi location determination server from the wirelessAP.

The information of the wireless AP extracted based on the locationinformation request message of the mobile terminal 100 can include oneor more of media access control (MAC) address, service setidentification (SSID), received signal strength indicator (RSSI),reference signal received power (RSRP), reference signal receivedquality (RSRQ), channel information, privacy, network type, signalstrength, noise strength, and the like.

The Wi-Fi location determination server may receive the information ofthe wireless AP connected to the mobile terminal 100 as described above,and may extract wireless AP information corresponding to the wireless APconnected to the mobile terminal from the pre-established database. Theinformation of any wireless APs stored in the database may beinformation such as MAC address, SSID, RSSI, channel information,privacy, network type, latitude and longitude coordinate, building atwhich the wireless AP is located, floor number, detailed indoor locationinformation (GPS coordinate available), AP owner's address, phonenumber, and the like. In order to remove wireless APs provided using amobile AP or an illegal MAC address during a location determiningprocess, the Wi-Fi location determination server may extract only apredetermined number of wireless AP information in order of high RSSI.

Then, the Wi-Fi location determination server may extract (analyze)location information of the mobile terminal 100 using at least onewireless AP information extracted from the database. A method forextracting (analyzing) location information of the mobile terminal 100can include a Cell-ID method, a fingerprint method, a trigonometrymethod, a landmark method, and the like. The Cell-ID method is used todetermine a position of a wireless AP having the largest signalstrength, among peripheral wireless AP information collected by a mobileterminal, as a position of the mobile terminal. The Cell-ID method is animplementation that is minimally complex, does not require additionalcosts, and location information can be rapidly acquired. However, in theCell-ID method, the precision of positioning may fall below a desiredthreshold when the installation density of wireless APs is low.

The fingerprint method is used to collect signal strength information byselecting a reference position from a service area, and to track aposition of a mobile terminal using the signal strength informationtransmitted from the mobile terminal based on the collected information.In order to use the fingerprint method, it is common for thecharacteristics of radio signals to be pre-stored in the form of adatabase.

The trigonometry method is used to calculate a position of a mobileterminal based on a distance between coordinates of at least threewireless APs and the mobile terminal. In order to measure the distancebetween the mobile terminal and the wireless APs, signal strength may beconverted into distance information, Time of Arrival (ToA), TimeDifference of Arrival (TDoA), Angle of Arrival (AoA), or the like may betaken for transmitted wireless signals.

The landmark method is used to measure a position of a mobile terminalusing a known landmark transmitter. In addition to these positionlocation methods, various algorithms may be used to extract (analyze)location information of a mobile terminal. Such extracted locationinformation may be transmitted to the mobile terminal 100 through theWi-Fi location determination server, thereby acquiring locationinformation of the mobile terminal 100.

The mobile terminal 100 can acquire location information by beingconnected to at least one wireless AP. The number of wireless APsrequired to acquire location information of the mobile terminal 100 canbe variously changed according to a wireless communication environmentwithin which the mobile terminal 100 is positioned.

As previously described with regard to FIG. 1A, the mobile terminal maybe configured to include short-range communication techniques such asBluetooth™, Radio Frequency Identification (RFID), Infrared DataAssociation (IrDA), UltraWideband (UWB), ZigBee, Near FieldCommunication (NFC), Wireless USB (Wireless Universal Serial Bus), andthe like.

A typical NFC module provided at the mobile terminal supportsshort-range wireless communication, which is a non-contactable type ofcommunication between mobile terminals and generally occurs within about10 cm. The NFC module may operate in one of a card mode, a reader mode,or a P2P mode. The mobile terminal 100 can further include a securitymodule for storing card information, in order to operate the NFC modulein a card mode. The security module may be a physical medium such asUniversal Integrated Circuit Card (UICC) (e.g., a SubscriberIdentification Module (SIM) or Universal SIM (USIM)), a secure micro SDand a sticker, or a logical medium (e.g., embedded Secure Element (SE))embedded in the mobile terminal. Single Wire Protocol (SWP)-based dataexchange may be performed between the NFC module and the securitymodule.

When the NFC module operates in a card mode, the mobile terminal maytransmit card information on a general IC card to the outside. Morespecifically, if a mobile terminal having card information on a paymentcard (e.g., a credit card or a bus card) approaches a card reader, ashort-range mobile payment may be executed. As another example, if amobile terminal which stores card information on an entrance cardapproaches an entrance card reader, an entrance approval procedure maystart. A card such as a credit card, a traffic card, or an entrance cardmay be included in the security module in the form of applet, and thesecurity module may store card information on the card mounted therein.Card information for a payment card may include any of a card number, aremaining amount and usage history, and the like. Card information of anentrance card may include any of a user's name, a user's number (e.g.,undergraduate number or staff number), an entrance history, and thelike.

When the NFC module operates in a reader mode, the mobile terminal canread data from an external tag. The data received from the external tagby the mobile terminal may be coded into the NFC Data Exchange Formatdefined by the NFC Forum. The NFC Forum generally defines four recordtypes. More specifically, the NFC Forum defines four Record TypeDefinitions (RTDs) such as smart poster, text, Uniform ResourceIdentifier (URI), and general control. If the data received from theexternal tag is a smart poster type, the controller may execute abrowser (e.g., Internet browser). If the data received from the externaltag is a text type, the controller may execute a text viewer. If thedata received from the external tag is a URI type, the controller mayexecute a browser or originate a call. If the data received from theexternal tag is a general control type, the controller may execute aproper operation according to control content.

In some cases in which the NFC module operates in a P2P (Peer-to-Peer)mode, the mobile terminal can execute P2P communication with anothermobile terminal. In this instance, Logical Link Control Protocol (LLCP)may be applied to the P2P communication. For P2P communication,connection may be generated between the mobile terminal and anothermobile terminal. This connection may be categorized as a connectionlessmode which ends after one packet is switched, and a connection-orientedmode in which packets are switched consecutively. For a typical P2Pcommunication, data such as an electronic type name card, addressinformation, a digital photo and a URL, a setup parameter for Bluetoothconnection, Wi-Fi connection, etc. may be switched. The P2P mode can beeffectively utilized in switching data of a small capacity, because anavailable distance for NFC communication is relatively short.

Further preferred embodiments will be described in more detail withreference to additional drawing figures. It is understood by thoseskilled in the art that the present features can be embodied in severalforms without departing from the characteristics thereof.

FIG. 5 is view illustrating a configuration of a mobile terminal and aphotographing device according to an embodiment. Only some of thecomponents of the mobile terminal 100 shown in FIG. 1 are illustrated inFIG. 5. A description of the configuration of the mobile terminal 100shown in FIG. 5 is replaced by that of FIG. 1.

An omnidirectional photographing device 500 can include an imageacquisition unit 510, a short-range communication module 530, a sensor550, and a controller 590.

The image acquisition unit 510 may acquire an omnidirectional image byphotographing an omnidirectional background around the omnidirectionalphotographing device 500. The omnidirectional image may have a sphericalshape of FIG. 7A which will be described later. The omnidirectionalimage may be referred to as a 360-degree image.

The image acquisition unit 510 may include a plurality of cameras. InFIG. 5, a front camera 511 and a rear camera 513 have been illustratedas an example, but the present invention is not limited thereto. Thatis, three or more cameras may be provided in the omnidirectionalphotographing device 500.

Each of the front camera 511 and the rear camera 513 can include afisheye lens having an angle of view of 180 degrees or more. Each of thefront camera 511 and the rear camera 513 can photograph anomnidirectional background through the fisheye lens.

The controller 590 can generate an omnidirectional image bysynthesizing, in a spherical shape, two omnidirectional partial imagesacquired through the respective fisheye lenses. The short-rangecommunication module 530 may wirelessly transmit, the mobile terminal100, the spherical omnidirectional image generated by the controller590. The short-range communication module 530 may transmit theomnidirectional image to the mobile terminal 100 using any onecommunication protocol among Wi-Fi Direct, Bluetooth, and Wi-Fi, but thecommunication protocol is merely an example.

The omnidirectional photographing device 500 can include a wiredcommunication interface such as a USB interface as well as theshort-range communication module. The omnidirectional photographingdevice 500 can perform communication with the mobile terminal 100through the wired communication interface.

The sensor 550 may include at least one of a gyro sensor and anacceleration sensor. The controller 590 can control overall operationsof the omnidirectional photographing device 500. In addition, theomnidirectional photographing device 500 can include at least onemicrophone.

FIG. 6 is a flowchart illustrating an operating method of the mobileterminal according to an embodiment. Referring to FIG. 6, theshort-range communication module 114 of the mobile terminal 100 receivesan omnidirectional image from the short-range communication module 530of the photographing device 500 (S601).

The short-range communication modules 114 and 530 may use a Bluetoothcommunication protocol. However, this is merely an example, and theshort-range communication modules 114 and 530 may use variousshort-range communication protocols. The mobile terminal 100 canreceive, in real time, an omnidirectional image from the omnidirectionalphotographing device 500 as a camera application installed in the mobileterminal is executed.

The omnidirectional image may be obtained as the omnidirectionalphotographing device 500 photographs an omnidirectional photographingbackground in which the omnidirectional photographing device 500 islocated. The controller 180 of the mobile terminal 100 displays a firstimage included in the received omnidirectional image on a main screen ofthe display unit 151 (S603).

The main screen of the display unit 151 may be the entire screen of thedisplay unit 151, on which information is displayed. The main screen ofthe display unit 151 may also be a partial screen having a size equal toor greater than a half of the size of the entire screen of the displayunit 151. Further, the first image included in the omnidirectional imagemay be an image photographed by the front camera 511 of thephotographing device 500 or an image photographed by the rear camera 513of the photographing device 500.

The controller 180 acquires any one of an object information displayedon the main screen and an event related to the omnidirectional image(S605), and displays a second image included in the omnidirectionalimage on a sub-screen of the display unit 151, based on at least one ofthe acquired object information of the first image and the acquiredevent (S607).

The sub-screen of the display unit 151 may be a partial screen having asize less than the half of the size of the entire screen of the displayunit 151. When the first image is displayed on the main screen for apredetermined time or more, the controller 180 can acquire the objectinformation of the first image and the event.

The object information of the first image displayed on the main screenmay be information on an object included in the first image. Here, theobject may be a person, thing, or animal. The information on the objectmay include information on a behavior of a person, a pose of the person,an attribute of a thing, or a situation of the object. The controller180 can recognize persons and things, which are included in an image,poses of the persons, and the like through a digital image processingtechnique known in the art.

The event may be a sound detected from an omnidirectional backgroundcorresponding to the omnidirectional image received from thephotographing device 500. The controller 180 can detect a sound input tothe microphone 122 provided in the mobile terminal 100. When theintensity of the input sound is equal to or greater than a referenceintensity, the controller 180 can determine that the event has beendetected.

In another embodiment, the event may be a pinch-out command forenlarging the first image displayed on the main screen. The controller180 can display the second image included in the omnidirectional imageon the sub-screen, based on the detected event. That is, the controller180 can display, on the sub-screen, the second image having objectinformation identical or similar to the object information of the firstimage displayed on the display unit 151.

For example, when the object information of the first image is food, thecontroller 180 can display the second image on the sub-screen when thesame kind of food or a similar kind of food is included in the secondimage included in the omnidirectional image. When the main screen is theentire screen of the display unit 151, the size of the main screen canbe decreased by the size of the sub-screen. Therefore, the size of thefirst image may also be decreased by the size of the sub-screen.

The second image having object information similar to the objectinformation of the first image may be a partial image included in theomnidirectional image. Steps S601 to 607 will be described in detailwith reference to the accompanying drawings. In particular, FIG. 7A is aview illustrating that an omnidirectional background around thephotographing device is to be photographed, and FIG. 7B viewillustrating an example in which a second image is displayed on asub-screen, based on any one of object information of a first imagedisplayed on a main screen and an event related to an omnidirectionalimage according to an embodiment.

Referring to FIG. 7A, the photographing device 500 can photograph anomnidirectional background. For example, the photographing device 500can photograph a vertical lower area and a vertical upper area, based ona horizontal plane on which the photographing device 500 is located.That is, the photographing device 500 can acquire an omnidirectionalimage 700 having a spherical shape, which corresponds to theomnidirectional background, using the photographing device 500 as thecenter. The acquired omnidirectional image 700 can also be transmittedto the mobile terminal 100.

Referring to FIG. 7B, the mobile terminal 100 can display a first image710 included in the omnidirectional image 700 on a main screen 750through the display unit 151. The main screen 750 may be the entirescreen displayed by the display unit 151, and the first image 710 isincluded in the omnidirectional image 700 shown in FIG. 7A.

The first image 710 may be a preview image displayed on a preview screendisplayed as the camera application installed in the mobile terminal 100is executed. That is, the first image 710 may be received in real timefrom the photographing device 500. The controller 180 can also display asecond image 730 included in the omnidirectional image 700 on asub-screen 770, based on any one of object information of the firstimage 710 displayed on the main screen 750 and an event related to theomnidirectional image 700. The second image 730 may be an image at aposition shown in FIG. 7A. The second image 730 may also be an imagereceived in real time from the photographing device 500.

In an embodiment, when a touch input signal is received on the mainscreen 750, the controller 180 can display, on the sub-screen 770, thesecond image 730 having object information similar to the objectinformation of the first image 710. Therefore, the size of the mainscreen 750 can be decreased by the size of the sub-screen 770. The sizeof the sub-screen 770 may be set to a default value, but may be changeddepending on a setting of a user.

Next, FIGS. 8A and 8B are views illustrating an example in which asecond image is displayed on the sub-screen, based on object informationof a first image displayed on the main screen according to anembodiment. Referring to FIG. 8A, the user is photographing a backgroundaround the photographing device 500 through the front camera 511 and therear camera 513 of the photographing device 500. The front camera 511can acquire a front image corresponding to a front background 810 in theomnidirectional background, and the rear camera 513 can acquire a rearimage corresponding to a rear background 820 in the omnidirectionalbackground.

In FIGS. 8A and 8B, it is assumed that the background is a concertbackground at which singers perform a concert. The short-rangecommunication module 114 of the mobile terminal 100 can receive anomnidirectional image from the short-range communication module 530 ofthe photographing device 500. The controller 180 can display a partialimage 830 of a front image in the received omnidirectional image on themain screen 750 of the display unit 151. The partial image 830 may be apreview image as the camera application is executed. The user canmanipulate the photographing device 500 such that an image correspondingto a specific background in the omnidirectional background is displayedon the mobile terminal 100.

The preview image being displayed on the main screen 750 may be apartial image in the image acquired by the front camera 511 of thephotographing device 500. That is, only the partial image 830corresponding to a partial background 811 in the front background 810can be displayed on the main screen 750. In other words, a partial imageof a remaining background 813 is not displayed on the main screen 750.

The controller 180 can acquire object information of the partial image830 displayed on the main screen 750. Here, the object information ofthe partial image 830 may include poses struck by objects included inthe partial image 830. That is, the controller 180 can recognize theposes of the objects included in the partial image 830.

When a touch input signal is received on the main screen 750, thecontroller 180 can search another object that takes the same pose as anobject recognized in the omnidirectional image except the partial image830. The intensity of the touch input signal may be less than a presetintensity. That is, this may be when the user weakly touches the mainscreen 750.

When another object that takes the same pose is searched in theomnidirectional image, the controller 180 can display another partialimage 850 corresponding to the searched object on the sub-screen 770.That is, the other partial image 850 having object information similaror identical to the object information of the partial image 830 can bedisplayed on the sub-screen 770. When a touch input signal is received,the controller 180 can automatically display the other partial image 850on the sub-screen 770.

That is, when the user desires to confirm or photograph a colleaguesinger not displayed in the preview image, the user can photograph thecorresponding colleague singer together with the other singers throughan operation of touching the main screen 750.

Next, FIGS. 9A to 9C are views illustrating an example in which a secondimage is displayed on the sub-screen, based on object information of afirst image displayed on the main screen according to anotherembodiment. Referring to FIG. 9A, the user is photographing a backgroundaround the photographing device 500 through the front camera 511 and therear camera 513 of the photographing device 500. The front camera 511can acquire a front image corresponding to a front background 910 in theomnidirectional background, and the rear camera 513 can acquire a rearimage corresponding to a rear background 930 in the omnidirectionalbackground.

In FIGS. 9A to 9C, it is assumed that the background is a partybackground at which people have a party. The short-range communicationmodule 114 of the mobile terminal 100 can receive an omnidirectionalimage from the short-range communication module 530 of the photographingdevice 500. The controller 180 can display a front image 950 in thereceived omnidirectional image on the main screen 750 of the displayunit 151. The front image 950 may be a preview image as the cameraapplication is executed.

The user can manipulate the photographing device 500 such that an imagecorresponding to a specific background in the omnidirectional backgroundis displayed on the mobile terminal 100. The preview image beingdisplayed on the main screen can be acquired by the front camera 511 ofthe photographing device 500. That is, the front image 950 correspondingto the front background 910 can be displayed on the main screen 750.

The controller 180 can acquire object information of the front image 950displayed on the main screen 750. Here, the object information of thefront image 950 may be one or more of poses that objects included in thefront image 950 take to have a picture taken and a figure of an objectstaring at the front camera 511. The controller 180 can recognize one ormore of a pose of an object included in the front image 950 and a figureof the object staring at the front camera 511.

The front image 950 may include an image of a person holding a glass.When a touch input signal is received on the main screen 750, thecontroller 180 can search another object that takes the same pose as aperson recognized in the omnidirectional image except the front image950. The intensity of the touch input signal may be less than a presetintensity. That is, this is when the user weakly touches the main screen750.

When another object that takes the same pose in the omnidirectionalimage is searched, the controller 180 can display a partial image 970corresponding to the searched object on the sub-screen 770. That is, thepartial image 970 having object information similar or identical to thatof the front image 950 can be displayed on the sub-screen 770. When atouch input signal is received, the controller 180 can automaticallydisplay the partial image 970 on the sub-screen 770. The partial image970 may be included in the rear image photographed through the rearcamera 513, but this is merely an example.

That is, when the user desires to confirm or photograph an object notdisplayed in the preview image, the user can photograph thecorresponding object together with the object displayed on the mainscreen 750 through an operation of touching the main screen 750.

Next, FIG. 9C will be described. In FIG. 9C, it is assumed that an imagedisplayed on the main screen 750 is the front image 950 as shown in FIG.9A. If a touch input signal having a preset intensity or more isreceived on the main screen 750, the controller 180 can display thefront image 950 on a first divided screen 753 in the entire screen ofthe display unit 151, and display a rear image 990 on a second dividedscreen 755. Here, the first divided screen 753 may be the main screen.

Based on an intensity of the touch input signal, an image having objectinformation identical or similar to that of the image displayed on themain screen may be provided, or an image having another angle of viewcan be displayed. If a touch input signal is received through the firstdivided screen 753, the controller 180 can again display the front image950 on the entire screen of the display unit 151.

Again, FIG. 6 will be described. If a change request of the first imagedisplayed on the main screen is received (S609), the controller 180changes the first image to a third image included in the omnidirectionalimage and displays a fourth image included in the omnidirectional imageon the sub-screen, based on object information of the third image(S611).

The change request of the first image displayed on the main screen maybe a request for changing the first image to another image included inthe omnidirectional image. The change request of the first image may bea request for, after a touch point of the first image is selected,moving the selected touch point in a specific direction.

The controller 180 can change the first image to a third image includedin the omnidirectional image in response to the change request of thefirst image. The controller 180 can acquire object information of thechanged third image. For example, if the object information of the thirdimage is information on a plurality of foods, the controller 180 candisplay, on the sub-screen, a fourth image including the foods, which isincluded in the omnidirectional image.

Steps S609 and S611 will be described with reference to the accompanyingdrawings. In particular, FIGS. 10A to 10C are views illustrating anexample in which, as a first image displayed on the main screen ischanged to a third image, a second image displayed on the sub-screen ischanged to a fourth image related to object information of the thirdimage.

Referring to FIG. 10A, the photographing device 500 can photograph anomnidirectional background 1001. Particularly, the photographing device500 can also photograph a lower background 1003 located at a lower endof the photographing device 500 in the omnidirectional background 1001.The mobile terminal 100 can display, on the main screen 750, a partialimage 1010 in an image photographed through the front camera 511 of thephotographing device 500.

Referring to FIG. 10B, the controller 180 can receive a command forenlarging the partial image 1010. The command for enlarging the partialimage 1010 may be a pinch-out command. The controller 180 can display,on the main screen 750, the partial image 1020 enlarged in response tothe pitch-out command. Here, the pinch-out command may be a command forenlarging a person included in the partial image 1010.

The controller 180 can acquire object information through the enlargedpartial image 1020. The object information may be a person who is havinga conversation. The controller 180 can receive a touch input signalhaving a preset intensity or less on the main screen 750. The controller180 can display, on the sub-screen 770, another image 1030 having anobject attribute identical or similar to the acquired objectinformation, in response to the received touch input signal. The anotherimage 1030 may be an image including a person who is having aconversation in an image included in the omnidirectional image.

After that, the controller 180, as shown in FIG. 10C, can change theenlarged partial image 1020 displayed on the main screen 750 to anotherimage 1040 including foods in response to an image change request. Thecontroller 180 can acquire object information of the another image 1040.The object information may include information representing that a firstfood has been recognized. The controller 180 can change the anotherimage 1030 displayed on the sub-screen 770 to a food image 1050including a second food different from the first food, based on theacquired object information. The food image 1050 may also be an imageincluded in the omnidirectional image received from the photographingdevice 500.

As the image displayed on the main screen 750 is changed, the imagedisplayed on the sub-screen is also changed to an image having anattribute identical or similar to that of the image displayed on themain screen 750, so that the user can easily detect an image suitablefor an intention of the user in the omnidirectional image.

Again, FIG. 6 will be described. Meanwhile, if a change request of thesecond image displayed on the sub-screen is received (S613), thecontroller 180 displays, on the sub-screen, a fifth image included inthe omnidirectional image related to the object information of the firstimage displayed on the main screen (S615).

The change request of the second image displayed on the sub-screen maybe a request for receiving a touch input signal having a presetintensity or less on the sub-screen, but the present disclosure is notlimited thereto. If a change request of the second image displayed onthe sub-screen is received, the controller 180 can change the secondimage to a fifth image included in the omnidirectional image whiledisplaying the first image on the main screen. The fifth image may be animage having an attribute identical or similar to the object informationof the first image.

Steps 5613 and S615 will be described with reference to the accompanyingdrawings. In particular, FIGS. 11A and 11B are views illustrating anexample in which a second image is changed to another image related toobject information of a first image in response to a change request ofthe second image displayed on the sub-screen according to an embodiment.

Referring to FIG. 11A, the photographing device 500 can photograph apartial background 1101 and another background 1103 in anomnidirectional background. The mobile terminal 100 can display, on themain screen 750, a first image 1110 corresponding to the partialbackground 1101 received from the photographing device 500.

The controller 180 can acquire object information of the first image1110 displayed on the main screen 750. Here, the object information mayinclude information on a specific pose of a person. The controller 180,as shown in FIG. 11B, may receive a touch input signal having a presetintensity or less on the main screen 750. The controller 180 candisplay, on the sub-screen 770, a second image 1130 having an attributeidentical or similar to the object information of the first image 1110,in response to the received touch input signal. The second image 1130may include an image of another person who takes a pose identical orsimilar to that struck by a person of the first image 1110.

The controller 180 can again receive the touch input signal having thepreset intensity or less on the sub-screen 770. The controller 180 canchange the second image 1130 to a fifth image 1150 in response to theagain received touch input signal. In this instance, the first image1110 may be displayed as it is on the main screen 750. The fifth image1150 may include an image of another person who takes a pose identicalor similar to that struck by the person of the first image 1110. Theuser can photograph an image of another person who takes the same poseas a person displayed on the main screen.

Next, FIGS. 12A and 12B are views illustrating an example in which,based on object information of a first image displayed on the mainscreen, a second image related to the object information of the firstimage is displayed on the sub-screen according to another embodiment. InFIGS. 12A and 12B, it is assumed that a background photographed throughthe photographing device 500 is a background at which a professor isgiving a lecture.

Referring to FIG. 12A, the photographing device 500 is photographing alecturing background 1201 representing that a professor is giving alecture. The mobile terminal 100 can display, on the main screen 750, afirst image 1210 in an omnidirectional image corresponding to thelecturing background 1201.

As shown in FIG. 12B, if a command for enlarging the first image 1210 isreceived, the controller 180 can display the enlarged first image 1210on the main screen 750. The controller 180 can acquire objectinformation of the first image 1210 displayed on the main screen 750.Here, the object information may represent a lecture situation of theprofessor, in which lecture data is not shown.

The controller 180 can receive a touch input signal having a presetintensity less on the main screen 750, and display, on the sub-screen770, a second image 1230 related to the object information of the firstimage 1210, in response to the received touch input signal. The secondimage 1230 may be a lecture data image related to the lecture situationof the professor. The lecture data image may be an image included in theomnidirectional image.

As described above, according to the embodiment, the user can moreefficiently photograph a lecture situation as an image closely relatedto an image displayed on the main screen is provided on the sub-screen.

Next, FIGS. 13A and 13B are views illustrating an example in which,based on an event detected from an omnidirectional backgroundcorresponding to an omnidirectional image, an image corresponding to thedetected event is provided on the sub-screen according to an embodiment.

In FIGS. 13A and 13B, it is assumed that a background photographedthrough the photographing device 500 is a background at which aprofessor is giving a lecture. Referring to FIG. 13A, the photographingdevice 500 is photographing a lecturing background 1201 representingthat a professor is giving a lecture and a listening background 1203representing a state in which students are listening the lecture. Themobile terminal 100 can display a first image 1210 corresponding to thelecturing background 1201 on the main screen 750.

In this state, the controller 180 can detect a specific event from thelecturing background 1203. If a sound having a first reference intensityor more is detected, the controller 180 can determine that an event hasbeen detected. The event detected from the listening background 1203 maybe acclamation of the students.

If a sound input through the microphone 122 is equal to or greater thanthe first reference intensity, the controller 180 can determine that anevent has been detected, and display a second image 1310 correspondingto the detected event on the sub-screen 770. Here, the second image 1310may be an image corresponding to a point at which the sound having thefirst reference intensity or more is generated. The second image 1310may be an image included in the omnidirectional image.

Meanwhile, in this state, if a sound having a second reference intensityor more is detected, the controller 180 can gradually increase the sizeof the sub-screen 770. The second reference intensity may be greaterthan the first reference intensity. If the size of the sub-screen 770 isexceed a half of the size of the entire screen of the display unit 151,the controller 180 can change an outer line of the sub-screen 770 to adotted line or perform highlight processing so as to represent that thesub-screen 770 is to be changed to the main screen.

If a touch input signal is received on the sub-screen 770 of which sizeexceeds the half of the size of the entire surface of the display unit151 for a predetermined time, the controller 180 can recognize thesub-screen 770 as the main screen. Accordingly, it is possible to obtainan effect as if the second image 1310 was displayed on the main screen.

FIGS. 14A and 14B are views illustrating a process of changing sizes ofthe main screen and the sub-screen or changing the main screen and thesub-screen according to an embodiment. Referring to FIG. 14A, the mobileterminal 100 is displaying a first image 1410 on the main screen 750,and is displaying a second image 1430 on the sub-screen 770.

A boundary line 1450 is displayed at the boundary between the mainscreen 750 and the sub-screen 770. If a command for moving the boundaryline 1450 to the right side after the boundary line 1450 is selected fora predetermined time is received, the controller 180 can increase thesize of the main screen 750 and decrease the size of the sub-screen 770.

Referring to FIG. 14B, if a command for moving the boundary line 1450 tothe left side after the boundary line 1450 is selected for apredetermined time is received, the controller 180 can display, on thesub-screen 770, the first image 1410 that has been displayed on the mainscreen 750, and display, on the main screen 750, the second image 1430that has been displayed on the sub-screen 770. That is, positions of thefirst image 1410 displayed on the main screen 750 and the second image1430 displayed on the sub-screen 770 may be changed with each other.

In an embodiment, if the size of the sub-screen 770 becomes larger thanthe size of the main screen 750 in response to the command for movingthe boundary line 1450 to the left side, the controller 180 can allowthe positions of the first image 1410 displayed on the main screen 750and the second image 1430 displayed on the sub-screen 770 to be changedwith each other.

In this state, if an input for flicking the first image 1410 displayedon the sub-screen 770 in the upper direction after the mobile terminal100 enters into an edition mode for editing a photographing view isreceived, the controller 180 can display the second image 1430 on theentire screen of the display unit 151.

Several touch inputs on a screen is required to watch a specific imagein an omnidirectional image. However, as described above, the user canquickly search a desired image through only a simple manipulation ofchanging an image on the main screen and an image on the sub-screen witheach other.

Next, FIGS. 15A and 15B are views illustrating an example in which,after an image displayed on the main screen and an image displayed onthe sub-screen are photographed and stored, a stored omnidirectionalimage is provided in various forms according to an embodiment. Inparticular, FIG. 15A illustrates an image displayed on the mobileterminal 100 when an omnidirectional image is photographed through thephotographing device 500. That is, an omnidirectional image may bephotographed in the state in which the first image 1410 is displayed onthe main screen of the mobile terminal 100 and the second image 1430 isdisplayed on the sub-screen 770.

The controller 180 can recognize that the omnidirectional image isphotographed in the state in which the first image 1410 is displayed onthe main screen of the mobile terminal 100 and the second image 1430 isdisplayed on the sub-screen 770, and store the recognized state. Thepoint of time when the recognized state is stored may be a point of timewhen a physical photographing button provided in the photographingdevice 500 or a photographing button icon displayed on a screen of themobile terminal 100 is selected.

The controller 180 can display a content list including stored imagesand moving pictures as a gallery application is executed. In anembodiment, when an omnidirectional image 1510 corresponding to thephotographed omnidirectional image is selected on the content list, thecontroller 180, as shown in FIG. 15B, may display a partial image 1501included in the omnidirectional image through the display unit 151.

In another embodiment, when the omnidirectional image 1510 correspondingto the photographed omnidirectional image is selected on the contentlist, the controller 180 can display a two-dimensional (2D) imagecorresponding to the first image 1410 included in the omnidirectionalimage through the display unit 151.

In another embodiment, when the omnidirectional image 1510 correspondingto the photographed omnidirectional image is selected on the contentlist, the controller 180 can display, through the display unit 151, astate in which the omnidirectional image is displayed on a screen of thedisplay unit 151 at the point of time when the omnidirectional image isstored. That is, the controller 180, as shown in FIG. 15B, may display afirst image 1530 corresponding to the first image 1410 on the mainscreen 750, and display a second image 1550 corresponding to the secondimage 1430 on the sub-screen 770. When the user desires to again view aphotographed omnidirectional image, the user can immediately view anomnidirectional image at a point of time when the photographing buttonis selected.

The present disclosure mentioned in the foregoing description may beimplemented using a machine-readable medium having instructions storedthereon for execution by a processor to perform various methodspresented herein. Examples of possible machine-readable mediums includeHDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive),ROM, RAM, CD-ROM, a magnetic tape, a floppy disk, an optical datastorage device, the other types of storage mediums presented herein, andcombinations thereof. If desired, the machine-readable medium may berealized in the form of a carrier wave (for example, a transmission overthe Internet). The processor may include the controller 180 of themobile terminal.

The foregoing embodiments are merely exemplary and are not to beconsidered as limiting the present disclosure. This description isintended to be illustrative, and not to limit the scope of the claims.Many alternatives, modifications, and variations will be apparent tothose skilled in the art. The features, structures, methods, and othercharacteristics of the exemplary embodiments described herein may becombined in various ways to obtain additional and/or alternativeexemplary embodiments.

As the present features may be embodied in several forms withoutdeparting from the characteristics thereof, it should also be understoodthat the above-described embodiments are not limited by any of thedetails of the foregoing description, unless otherwise specified, butrather should be considered broadly within its scope as defined in theappended claims, and therefore all changes and modifications that fallwithin the metes and bounds of the claims, or equivalents of such metesand bounds, are therefore intended to be embraced by the appendedclaims.

What is claimed is:
 1. A mobile terminal comprising: a wirelesscommunication processor configured to receive an omnidirectional imagefrom a photographing device; a display; and a controller configured to:display a first image on a main screen of the display corresponding to afirst partial image of the omnidirectional image, and display a secondimage corresponding to a second partial image of the omnidirectionalimage on a sub-screen, the second image having an object with anattribute similar to an object included in the first image.
 2. Themobile terminal of claim 1, wherein the controller is further configuredto: receive a change request of the first image displayed on the mainscreen, change the first image to a third image corresponding to a thirdpartial image of the omnidirectional image in response to the receivedchange request of the first image, and change the second image to afourth image corresponding to a fourth partial image of theomnidirectional image, the fourth image having an object with anattribute similar to an object included in the third image.
 3. Themobile terminal of claim 2, wherein the controller is further configuredto: receive a change request of the second image displayed on thesub-screen, and change the second image to a fifth image correspondingto a fifth partial image of the omnidirectional image, in response tothe received change request of the second image, the fifth image havingan object with an attribute similar to the object in the first image. 4.The mobile terminal of claim 3, wherein the controller is furtherconfigured to continue displaying the first image on the main screenwhen changing the second image displayed on the sub-screen to the fifthimage.
 5. The mobile terminal of claim 1, wherein the object of thefirst image includes information at least one of a person and a thingincluded in the first image, and a pose of the person.
 6. The mobileterminal of claim 5, wherein the second image includes another personhaving a pose similar to that of the person included in the first image.7. The mobile terminal of claim 1, wherein, when a touch input signalhaving a preset intensity or less is received on the main screen, thecontroller is further configured to display the second image on thesub-screen.
 8. The mobile terminal of claim 1, further comprising: amemory configured to store a state in which the first image and thesecond image are respectively displayed on the main screen and thesub-screen.
 9. The mobile terminal of claim 8, wherein the controller isfurther configured to store the state in which the first image and thesecond image are respectively displayed on the main screen and thesub-screen, at a point of time when a photographing button provided inthe photographing device is selected.
 10. The mobile terminal of claim1, further comprising: a microphone configured to acquire a sound input,wherein the controller is further configured to: display a third imagecorresponding to a third partial image of the omnidirectional image onthe sub-screen, when an intensity of the acquired sound is equal to orgreater than a first reference intensity, and wherein the third imagecorresponds to a point at which the sound is generated.
 11. The mobileterminal of claim 10, wherein, when the intensity of the acquired soundis equal to or greater than a second reference intensity, the controlleris further configured to increase the size of the sub-screen anddecrease the size of the main screen.
 12. The mobile terminal of claim1, wherein the controller is further configured to display the firstimage and the second image on a preview screen as a camera applicationis executed.
 13. The mobile terminal of claim 1, wherein a size of themain screen is equal to or greater than a half of a size of an entirescreen of the display unit, and a size of the sub-screen is less thanthe half of the size of the entire screen of the display unit.
 14. Amethod of controlling a mobile terminal, the method comprising:receiving, via a wireless communication processor, an omnidirectionalimage from a photographing device; displaying, via a display of themobile terminal, a first image on a main screen of the displaycorresponding to a first partial image of the omnidirectional image; anddisplaying, via the display, a second image corresponding to a secondpartial image of the omnidirectional image on a sub-screen, the secondimage having an object with an attribute similar to an object includedin the first image.
 15. The method of claim 14, further comprising:receiving, via a controller of the mobile terminal, a change request ofthe first image displayed on the main screen; changing, via thecontroller, the first image to a third image corresponding to a thirdpartial image of the omnidirectional image in response to the receivedchange request of the first image; and changing, via the controller, thesecond image to a fourth image corresponding to a fourth partial imageof the omnidirectional image, the fourth image having an object with anattribute similar to an object included in the third image.
 16. Themethod of claim 15, further comprising: receiving, via the controller, achange request of the second image displayed on the sub-screen; andchanging, via the controller, the second image to a fifth imagecorresponding to a fifth partial image of the omnidirectional image, inresponse to the received change request of the second image, the fifthimage having an object with an attribute similar to the object in thefirst image.
 17. The method of claim 16, further comprising: continuedisplaying the first image on the main screen when changing the secondimage displayed on the sub-screen to the fifth image.
 18. The method ofclaim 14, wherein the object of the first image includes information atleast one of a person and a thing included in the first image, and apose of the person.
 19. The method of claim 18, wherein the second imageincludes another person having a pose similar to that of the personincluded in the first image.
 20. The method of claim 14, wherein, when atouch input signal having a preset intensity or less is received on themain screen, the method further comprises displaying the second image onthe sub-screen.